CVE-2026-63277High· 8.5▾ TwilightLibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 46.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document. A document could name a Java database driver for such a link to be loaded from a remote location, so opening the document could run Java code from that location. In fixed versions an entry in a Java class path has to be a file URL.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-63269Medium· 6.7LibreOffice can link to audio and video files from a document, and on Linux it plays them with GStreamer
CVE-2026-63270Medium· 6.7URLs could be constructed which expanded environment variable or INI file values, so potentially sensitive information could be exfiltrated to a remote server on opening a document containing such links
CVE-2026-63266Medium· 6.8LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document
CVE-2026-63267Medium· 6.7LibreOffice Calc can link a cell range to an external csv data source, and the link is saved in the document
CVE-2026-63268Medium· 6.7LibreOffice Calc can link a cell range to an external data source, and the link is saved in the document
CVE-2026-6045Medium· 5.4Heap buffer overflow in EMF+ gradient brush import